When you apply an ice pack or a heating pad to your skin, what happens to the temperature of deeper tissues: muscle and bone, and ligaments and joints? What’s the temperature change at one centimetre, or three? Or even the core body temperature? How do those changes compare to the effects of saunas, fevers, exercise?
This is a brand new featured article. It’s a fairly minor one, but it is the second proper new featured article in recent history — the last one: Zapped! Does TENS work for pain? — and there’s another major one coming very soon. I’m on a roll!)